<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes" />
    <title>ShellCheck: SC1139 – Use `||` instead of `-o` between test commands.</title>
    <link rel="stylesheet" href="css/bootstrap.min.css" />
  </head>
  <body style="margin-left: auto; margin-right: auto; max-width: 800px">
    <h1>SC1139 – ShellCheck Wiki</h1>
    <a href="https://github.com/koalaman/shellcheck/wiki/SC1139">See this page on GitHub</a>
    <p style="display: none"><a href="index.html">Sitemap</a></p>
    <hr />
    <h2 id="use--instead-of--o-between-test-commands">Use <code>||</code>
instead of <code>-o</code> between test commands.</h2>
<p>And variations, like "Use <code>&amp;&amp;</code> instead of
<code>and</code>".</p>
<h3 id="problematic-code">Problematic code:</h3>
<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="SC1139.html#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="cf">if</span> <span class="bu">[</span> <span class="st">&quot;</span><span class="va">$1</span><span class="st">&quot;</span> <span class="ot">=</span> <span class="st">&quot;-v&quot;</span> <span class="bu">]</span> <span class="ex">-o</span> [ <span class="at">-n</span> <span class="st">&quot;</span><span class="va">$VERBOSE</span><span class="st">&quot;</span> ]</span>
<span id="cb1-2"><a href="SC1139.html#cb1-2" aria-hidden="true" tabindex="-1"></a><span class="cf">then</span></span>
<span id="cb1-3"><a href="SC1139.html#cb1-3" aria-hidden="true" tabindex="-1"></a>  <span class="bu">echo</span> <span class="st">&quot;Verbose log&quot;</span></span>
<span id="cb1-4"><a href="SC1139.html#cb1-4" aria-hidden="true" tabindex="-1"></a><span class="cf">fi</span></span></code></pre></div>
<h3 id="correct-code">Correct code:</h3>
<div class="sourceCode" id="cb2"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb2-1"><a href="SC1139.html#cb2-1" aria-hidden="true" tabindex="-1"></a><span class="cf">if</span> <span class="bu">[</span> <span class="st">&quot;</span><span class="va">$1</span><span class="st">&quot;</span> <span class="ot">=</span> <span class="st">&quot;-v&quot;</span> <span class="bu">]</span> <span class="kw">||</span> <span class="bu">[</span> <span class="ot">-n</span> <span class="st">&quot;</span><span class="va">$VERBOSE</span><span class="st">&quot;</span> <span class="bu">]</span></span>
<span id="cb2-2"><a href="SC1139.html#cb2-2" aria-hidden="true" tabindex="-1"></a><span class="cf">then</span></span>
<span id="cb2-3"><a href="SC1139.html#cb2-3" aria-hidden="true" tabindex="-1"></a>  <span class="bu">echo</span> <span class="st">&quot;Verbose log&quot;</span></span>
<span id="cb2-4"><a href="SC1139.html#cb2-4" aria-hidden="true" tabindex="-1"></a><span class="cf">fi</span></span></code></pre></div>
<h3 id="rationale">Rationale:</h3>
<p>You have a <code>[ .. ]</code> or <code>[[ .. ]]</code> test
expression followed by <code>-o</code>/<code>-a</code> (or by
Python-style <code>or</code>/<code>and</code>).</p>
<p><code>-o</code> and <code>-a</code> work <em>inside</em>
<code>[ .. ]</code>, but they do not work <em>between</em> them. The
Python operators <code>or</code> and <code>and</code> are never
recognized in Bash.</p>
<p>To join two separate test expressions, instead use <code>||</code>
for "logical OR", or <code>&amp;&amp;</code> for "logical AND".</p>
<h3 id="exceptions">Exceptions:</h3>
<p>None</p>
<h3 id="related-resources">Related resources:</h3>
<ul>
<li>Help by adding links to BashFAQ, StackOverflow, man pages, POSIX,
etc!</li>
</ul>
    <hr />
    <p style='font-size: 80%'><a href="../index.html">ShellCheck</a> is a static analysis tool for shell scripts. This page is part of its documentation.</p>
  </body>
</html>


